dossrc1
Member
- Location
- Kennedy Space Center, Florida
Good day everyone,
Question, i'm workin on V6000 raceway, fill is not an issue.../ Ampacity of conductors is my issue (Over 40 Cond, 30A, 3w & 5w Recps, Continuous Load...)
376.22 B states that over 30 Current carrying conductors, you must start derating per T310.15.B3a. if i don't have to de-rate under 30 conductors, once i hit 31 conductors, do i have to de-rate the conductors by 60%, then over 40 conductors by 65%. i'm dealing with #10, THHN, amps to derate from 40a in 90c coulum. so (40 x .35 = 14amps) so for 30a ckts, i would be looking at #4 THHN (95 x .35= 33.25 Amps) am I reading this correct....
Question, i'm workin on V6000 raceway, fill is not an issue.../ Ampacity of conductors is my issue (Over 40 Cond, 30A, 3w & 5w Recps, Continuous Load...)
376.22 B states that over 30 Current carrying conductors, you must start derating per T310.15.B3a. if i don't have to de-rate under 30 conductors, once i hit 31 conductors, do i have to de-rate the conductors by 60%, then over 40 conductors by 65%. i'm dealing with #10, THHN, amps to derate from 40a in 90c coulum. so (40 x .35 = 14amps) so for 30a ckts, i would be looking at #4 THHN (95 x .35= 33.25 Amps) am I reading this correct....